Founding Full Stack Engineer

Venta AI (YC S23); Amsterdam; On-site; EUR 60,000 - 80,000; Full time

Job summary

A Y Combinator-backed startup in Amsterdam is seeking a Founding Full Stack Engineer to develop core product features. The role requires significant full-stack development experience, proficiency in Typescript and React, and the ability to communicate complex concepts clearly. Join a passionate team dedicated to leveraging AI for sales teams. The position offers full-time engagement in a collaborative environment.

Qualifications

• Significant experience in full-stack developer roles, preferably as a Senior Software Engineer.
• Comprehensive knowledge of Typescript, React and server-side development (preferably Remix).
• Experience with leveraging latest AI Code IDEs (Cursor, Windsurf, Claude, IntelliJ, Junie).

Responsibilities

• Own and develop core product features on both the frontend and backend.
• Collaborate with founders and customers to design and implement new features.
• Maintain and improve the codebase for optimal performance.

Skills

Full-stack development

Typescript

React

Server-side development

AI Code IDEs

Scalable software operations

Fluent English communication

Tools

Python

Azure

Job description

Overview

Join to apply for the Founding Full Stack Engineer role at Venta AI (YC S23).

We’re seeking a highly skilled and proactive engineer to join our Y Combinator-backed startup, full-time and in person. This is an on-site role in Amsterdam, The Netherlands.

Responsibilities

• Own and develop core product features on both the frontend and backend of our product
• Collaborate with the founders and our customers to conceptualize, design and implement new features
• Maintain and improve our codebase for optimal performance
• Conduct code reviews and perform debugging tasks

Required qualifications

• Proven track record with significant experience in full-stack developer roles, preferably as a Senior Software Engineer
• Comprehensive knowledge of Typescript, React and server-side development (preferably Remix)
• Proficiency in designing multi-tenancy SaaS products
• Must have experience with leveraging latest AI Code IDEs (Cursor, Windsurf, Claude, IntelliJ, Junie)
• Experienced in operating software in a scalable manner
• Fluent in English, able to communicate complex technical concepts clearly and effectively
• Alignment with our purpose (our why) and our values (our how)

Bonus Skills and Experience

• Proficiency in Python
• Experience with hosting applications on Azure
• Fluent in German to communicate with our mostly German customers

About Venta AI

Lucas and Stefan founded their first AI company seven years ago (later acquired) and, learning from that journey, launched Venta AI to build AI employees for sales teams. We believe organizations must harness AI to stay competitive, and our mission is to make AI accessible, compliant, and transparent for European businesses.

We raised a € 2M pre-seed round from Y Combinator, Google’s AI fund and others. Venta AI is already in productive use at a fast growing number of companies and we are currently working hard to release our third version with advanced AI-features.

Our Why

We believe AI should handle the repetitive, so people can focus on what truly matters. We\'re here to help our customers win, drive innovation, and strengthen Europe’s economic power.

Our How

We work with structure, speed, and real passion. We celebrate progress, challenge each other, and boldly try new things — always focused on creating real value, not just ticking boxes.

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Engineering and Information Technology
• Software Development